Endorse a product

1-Often, celebrities contract to endorse a product, but should they use the product regularly, or even like the product before they are allowed to claim that they “endorse” the product? 2-If you were assigned to sell a product called “Sweet Treats” with the slogan, “so sweet, it will make you tweet,” but you thought the product tasted sour, and not at all sweet, what would you do? 3-Explore where the line is between harmlessly implying that someone is promoting a product, and someone dishonestly claiming that they genuinely believe the product is the best.